The camera adapter has a t2 male thread at the top (wide end) which screws into the adapter for the camera. It has a t2 female thread at the bottom which screws into a t2 mount. An eyepiece goes into the barrel at the bottom ( from the inside ) […]
Yearly archives: 2019
28 posts
Broadly speaking, I subscribe to the argument that as an amateur, you should care primarily about using a telescope you look into rather than as a way of capturing images on a computer. That doesn’t mean I’m not interested in astrophotography, but nothing quite beats the visceral impact of seeing […]
Autostar End of 505 connector cable — rj10 (the smaller “Handset” size) +-----------+ 1- Data TO Autostar Black | 1 2 3 4 | 2- Data FROM Autostar Red +---+ +---+ 3- not used Green |___| 4- ground Yellow Hole in Autostar Other end of cable 1- Astar Rcv: data […]
For some reason, there have always been some aspects of Quantum Mechanics which I’ve found it hard to get to grips with, not for the usual reasons ( weirdness, macroscopic superposition &c), but simply because some of the basic mathematical consequences of the framework are neither obvious nor typically explored […]
An awful lot of confusing stuff is written about quantum measurement, decoherence, bell’s theorem, etc. etc. I don’t have any answers, but I do at least want to capture the right questions. What are the issues and non-issues We all know that quantum systems behave differently from classical ones. We […]
A state function of a system in equilibrium is a macroscopic value which is a pure function of the state of the system. So, for example, we know that any two samples of the same quantity of a specific gas at given temperature and pressure will occupy the same volume. […]
Before even tempering, various different tuning schemes were used. The Harmonic Classic scale was built on perfect fifths and looked like this: Interval Note Ratio 0 C 1:1 1 C# 16:15 2 D 9:8 3 D# 6:5 4 E 5:4 5 F 4:3 6 F# 7:5 7 G 3:2 8 […]
Quantities One large egg white is approx 30ml and needs approx 50g sugar (60ml). Use as much water as needed say about 10ml. The amount isn’t critical, but the more you use the longer the cooking takes to reach temperature. Use lemon juice to wipe the bowl. Sugar at 119-121C […]
Sourdough starter feeding Do this last thing at night10g starter in a bowl. Throw out the rest and clean the container.In the bowl add 50g lukewarm water and 50g wholemeal rye flour then transfer back to the clean container.Leave overnight somewhere warm and then first thing in morning put into […]